A pool company needs to make a cover for an in-ground pool The pool cover is made up of the triangle PQT and the parallelogram M
NPR How many square feet of fabric will the company need to cover the pool?
278 square feet
299 square feet
326 square feet
358 square feet
278 square feet
299 square feet
326 square feet
358 square feet
2 answers:
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Given:
The scale factor between two circles is .
To find:
The ratio of their areas.
Solution:
We know that, all circles are similar.
The ratio of the areas of similar figures is equal to the ratio of squares of their corresponding sides or equal to the square of ratio of their corresponding sides.
The scale factor is the ratio of the corresponding sides.
Ratio of areas of circles = Square of scale factor between two circles
Therefore, the correct option is D.